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C90

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petes1776

Well-Known Member
Joined
Apr 12, 2013
Messages
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A friend is looking at one with a C90, it runs fine but afterfires, pops out the exhaust when retarding the throttle. It's dosn't have many hours since major. Mag drop, compression, mag timing, spark plugs all test good. Any ideas?

Thanks,
Pete 46 J3C
 

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